Quote Originally Posted by salinan View Post
What makes you think they have any facilities appropriate for keeping a prisoner? They are holed up where they can. It's quite possible that they need to move on a regular basis. Keeping a prisoner under those conditions, where it will impact on your mobility, would be an increased risk, and for what?
As far as we are aware, they have been in the same caves the whole time, and since they mention taking prisoners to the tunnels, they are probably still there.

Quote Originally Posted by salinan
Verify what, exactly? That he doesn't like goblins? That's hardly of much use to the resistance. And the likelihood of him having any information of any importance is vanishingly small. And the possibility of him turning coat to help them is also vanishingly small - he would have no reason to do so. While possibly he doesn't like goblins, it's unlikely he also hates hobgoblins. He may not like Redcloak for having jailed him, but that's not likely to be a reason to turn traitor.
To verify that he's willing to be a turncoat like he said he would. If he won't be, then go ahead and execute him. If he will be, then congratulations, you now have an actual spy.

Quote Originally Posted by salinan
For which they'd have to escort him a long way out of town, again wasting resources on an escort. And increasing risk again also, since the most vulnerable time for a prisoner escape is during transportation. And again, the likelihood of him having any useful info worth the effort and risk is minimal.
They teleported before, they can teleport again. It has already been revealed that cloister allows for summoning things back inside, and so there would be no need to worry about getting back. And although he isn't likely to know a lot of things, he has lived in the society before, and likely understands a number of things that could be useful to the resistance.